15636a347f
This PR fixes an issue where "Invalid alternative name" errors from `induction` stick around after removing the offending alternative.
89 lines
1.7 KiB
Text
89 lines
1.7 KiB
Text
/-! Incremental reuse in combinator -/
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def case (h : a ∨ b ∨ c) : True := by
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cases h
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case inr h =>
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cases h
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case inl =>
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dbg_trace "c 0"
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dbg_trace "c 1"
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dbg_trace "c 2"
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--^ sync
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--^ insert: ".5"
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/-!
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`case` with multiple tags should *not* be accidentally incremental, leading to e.g. kernel errors.
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-/
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-- RESET
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def case2 (h : a ∨ b ∨ c) : True := by
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cases h
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case inl | inr =>
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skip
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sorry
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--^ sync
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--^ insert: " "
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--^ collectDiagnostics
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-- RESET
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def cdot (h : a ∨ b) : True := by
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cases h
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. dbg_trace "d 0"
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dbg_trace "d 1"
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dbg_trace "d 2"
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--^ sync
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--^ insert: ".5"
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dbg_trace "d 3"
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-- RESET
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def have : True := by
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dbg_trace "h 0"
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have : True := by
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dbg_trace "h 1"
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dbg_trace "h 2"
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--^ sync
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--^ insert: ".5"
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dbg_trace "h 3"
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/-!
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Updating the `have` header should update the unsolved goals position (and currently re-run the body)
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-/
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-- RESET
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def spaceHave : True := by
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have : True := by
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--^ collectDiagnostics
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--^ insert: " "
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--^ collectDiagnostics
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dbg_trace "sh"
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-- RESET
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def next : True := by
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next =>
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dbg_trace "n 0"
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dbg_trace "n 1"
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--^ sync
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--^ insert: ".5"
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-- RESET
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def if : True := by
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if h : True then
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dbg_trace "i 0"
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dbg_trace "i 1"
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--^ sync
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--^ insert: ".5"
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else
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skip
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/-!
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Removing an extraneous case should not stick around.
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-/
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-- RESET
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example (n : Nat) : n = n := by
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induction n with
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| zero => simp
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--v sync
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--v delete: "| one => sorry"
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| one => simp
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| succ => simp
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--^ collectDiagnostics
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